Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as
A. dinoflagellates.
B. diatoms.
C. kelps.
D. euglenoids.
E. foraminifera.
B. diatoms.
Biology & Microbiology
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In a stratified lake, the warmer and less dense layer is called the
A) epilimnion. B) hypolimnion. C) hyperlimnion. D) thermocline.
Biology & Microbiology
Jellyfish are ____
a. polyp forms of cnidarians b. medusae forms of cnidarians c. spongiforms of cnidarians d. spongiforms of echinoderms e. polyp forms of echinoderms
Biology & Microbiology
The process of converting nitrogen gas to ammonium is called
A) biogeochemical processing. B) sublimation. C) nitrogen fixation. D) evaporation. E) nitrification.
Biology & Microbiology
In family Enterobacteriaceae, the capsular Antigen is also identified as
A. 'F' antigen B. 'O' antigen C. 'H' antigen D. 'K' antigen E. 'C' antigen
Biology & Microbiology